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The san pedro extraction method outlined here: http://www.nansnook.com/archives/tek/cactusex.htm seems to be solid, and it suggests that you do an acidic water extraction on fresh material. Other places I have read have suggested that one should dry the cactus material and then pulverize it, and extract with methanol. Then you're supposed to evaporate the methanol, dissolve in acidic water, and go through the rest of the process. in peoples' experiences, what's the best way to go - water or methanol?

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"A celibate clergy is an especially good idea, because it tends to suppress any hereditary propensity toward fanaticism." - Carl Sagan

AFOAF decided to go with the acid water extraction, and is following nan's tek, but decided to use muriatic acid (HCl) since it was more available. He's not sure now if that's what the problem is, but this is the score - he got to the point where acid water is squirted into the xylene with the alkaloids in it, and mescaline crystals precipitate. however, when he squirts in the acidic water, nothing happens. there's some bubbling but no precipitate.

any ideas as to what his problem is? He has made his cactus solution more basic, but is wondering if the acid is the problem?

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"A celibate clergy is an especially good idea, because it tends to suppress any hereditary propensity toward fanaticism." - Carl Sagan